EP 0564049 A3 19940316 -
Publication
Application
Priority
- US 86358092 A 19920403
- US 86364892 A 19920403
Abstract (en)
[origin: EP0564049A2] A process for making polymers of conjugated dienes containing hydroxyl groups in the diene blocks, which process comprises (a) making a precursor polymer by polymerizing at least one conjugated diene which leaves 1,2 disubstituted, 1,1 disubstituted, 1,1,2 trisubstituted or tetrasubstituted olefinic unsaturation in the polymer, (b) epoxidizing said precursor polymer such that epoxy groups form at said substituted sites and the amount of epoxy functionality in the polymer is from 0.1 to 5 meq/g polymer, and (c) contacting the epoxidized polymer with an alcohol having one unprotected hydroxyl group and either a compound of general formula MXn, wherein M is selected from the group consisting of hydrogen, boron, aluminium, iron and tin; X is a halogen; and n is an integer corresponding with the valence of M, or an organic complex thereof. A conjugated diene block copolymer containing 0.1 to 15 meq/g polymer of hydroxyl groups, which polymer is comprised of alcohol groups of the formula <CHEM> wherein P is -OH, -Cl or -OR with R being selected from the group consisting of alkyl radicals containing up to 10 carbon atoms, monohydric and dihydric alcohol groups and carbonate groups; Q is -OH or Cl with the proviso that at least one of P and Q is -OH and R1 and R2 are hydrogen or alkyl radicals with the proviso that if P is -OR only one of R1 and R2 can be hydrogen.
IPC 1-7
IPC 8 full level
C08F 8/04 (2006.01); C08C 19/40 (2006.01); C08F 8/00 (2006.01); C08F 297/04 (2006.01); C08G 18/62 (2006.01); C08G 59/50 (2006.01); C09D 163/08 (2006.01); C09D 175/04 (2006.01)
CPC (source: EP KR)
C08C 19/40 (2013.01 - EP); C08F 8/00 (2013.01 - EP KR); C08G 18/6208 (2013.01 - EP); C09D 175/04 (2013.01 - EP)
Citation (search report)
- [Y] EP 0387947 A2 19900919 - SHELL INT RESEARCH [NL]
- [Y] WO 9008787 A1 19900809 - AMOCO CORP [US]
- [Y] US 4051199 A 19770927 - UDIPI KISHORE, et al
- [DA] US 3135716 A 19640602 - URANEEK CARL A, et al
- [DA] US 5002676 A 19910326 - WILLIS CARL L [US], et al
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
EP 0564049 A2 19931006; EP 0564049 A3 19940316; EP 0564049 B1 20011024; BR 9301405 A 19931005; CA 2093192 A1 19931004; CN 1057537 C 20001018; CN 1077459 A 19931020; CN 1244542 A 20000216; DE 69330977 D1 20011129; DE 69330977 T2 20020627; ES 2164650 T3 20020301; JP 3285653 B2 20020527; JP H0625324 A 19940201; KR 100270298 B1 20001016; KR 930021679 A 19931122; MX 9301876 A 19940131; RU 2130032 C1 19990510; TW 222006 B 19940401
DOCDB simple family (application)
EP 93200947 A 19930402; BR 9301405 A 19930401; CA 2093192 A 19930401; CN 93103654 A 19930401; CN 99108492 A 19990618; DE 69330977 T 19930402; ES 93200947 T 19930402; JP 7559493 A 19930401; KR 930005549 A 19930401; MX 9301876 A 19930401; RU 93004599 A 19930401; TW 82101788 A 19930310